A uniform sphere of weight $W$ and radius $3\,m$ is being held by a string of length $2\,m$ , attached to a frictionless wall as shown in the figure. The tension in the string will be
$5\,W/4$
$15\,W/4$
$15\,W/16$
$5\,W/3$
The horizontal acceleration that should be given to a smooth inclined plane of angle $sin^{-1}\, (1/l)$ to keep an object stationary on the plane relative to the inclined plane is
A car accelerates on a horizontal road due to the forces exerted by
What are concurrent forces ? Explain equilibrium of particle under effect of concurrent forces.
In the given arrangement, the normal force applied by block on the ground is